Exynos mainline porting
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This page only contains some info, data and links regarding mainline on Exynos SoCs. If you want to mainline a device please follow the Mainlining guide.
The mainline kernel has (at least some) support for several Exynos SoCs:
- Exynos 3250
- Exynos 4210
- Exynos 4412
- Exynos 5250
- Exynos 5260
- Exynos 5410
- Exynos 5420
- Exynos 5422
- Exynos 5433
- Exynos 5800
- Exynos 7 (some early version of Exynos 7420 [1])
- Exynos 7885
- Exynos 850
There exists some WIP linux trees for other Exynos SoCs, or other devices with Exynos SoCs (this list can probably be extended):
- grimler's repository contains branches related to Exynos 5420
- PabloPL's repository contains branches related to Exynos 7420, 7580, 8890
- dsankouski's repository contains branches related to Exynos 7880
- VDavid003's repository contains branches related to Exynos 7885
- ivoszbg's repository contains branches related to Exynos 8895
- krzk's repository contains branches with several vendor (Samsung) kernel sources for many Exynos SoCs
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Exynos 4210 and 4412 were moved out of this article; see Samsung Exynos 4. |
Exynos 3250
Devices
No results
Specifications
- 2x ARM Cortex-A7 MPcore
- ARM Mali-400 GPU
More information
Exynos 5250
Devices
Device | Codename | Mainline |
---|---|---|
Google (Samsung) Nexus 10 | samsung-manta | |
HP Chromebook 11 G1 | google-spring | Y |
Samsung Chromebook | google-snow | Y |
Specifications
- 2x ARM Cortex A15 @ 1.7GHz
- ARM Mali-T604MP4 @ 533 MHz; 68.224 GFLOPS
More information
Exynos 5420
Manufacturer | Samsung |
---|---|
Name | Exynos 5420 |
Architecture | arm |
CPU | 4x 1.9 GHz A15 & 4x 1.3 GHz A7 |
GPU | Mali-T628 MP6 |
Year | 2013 |
Process | 28nm |
Mainline | yes |
Components | |
CPU |
Works |
UART |
Works |
Storage |
Works |
USB |
Works |
Display |
Works |
GPU |
Broken |
Pinctrl |
Works |
I²C |
Works |
SPI | |
Audio |
Works |
Video |
Broken |
Thermal |
Works |
WiFi |
Unavailable |
Bluetooth |
Unavailable |
Modem |
Unavailable |
GPS |
Unavailable |
Camera | |
Suspend |
Works |
Devices
Device | Codename | Mainline |
---|---|---|
Samsung Chromebook 2 11.6" | google-peach-pit | Y |
Samsung Galaxy Note 10.1 (2014) | samsung-n1awifi | N |
Samsung Galaxy Note Pro 12.2 (WiFi) | samsung-v1awifi | N |
Samsung Galaxy Tab PRO 10.1 (WiFi) | samsung-n2awifi | |
Samsung Galaxy Tab S 10.5 (WiFi) | samsung-chagallwifi | P |
Samsung Galaxy Tab S 10.5" LTE | samsung-chagalllte | |
Samsung Galaxy Tab S 8.4" LTE | samsung-klimtlte | P |
Specifications
- 4x Cortex A15 @ 1.9 GHz & 4x Cortex A7 @ 1.3 GHz
- Mali-T628 MP6 @ 533 MHz; 109 GFLOPS
More information
Exynos 5422 (also Exynos 5800)
Manufacturer | Samsung |
---|---|
Name | Exynos 5422 |
Architecture | armv7 |
CPU | 4x 1.9 GHz A15 & 4x 1.3 GHz A7 |
GPU | Mali-T628 MP6 |
Year | 2014 |
Process | nm |
Mainline | yes |
Components | |
CPU |
Works |
UART |
Works |
Storage |
Works |
USB |
Works |
Display |
Works |
GPU |
Works |
Pinctrl |
Works |
I²C |
Works |
SPI | |
Audio |
Works |
Video |
Works |
Thermal |
Works |
WiFi | |
Bluetooth | |
Modem | |
GPS | |
Camera | |
Suspend |
Works |
Devices
Device | Codename | Mainline |
---|---|---|
ODROID HC2 | odroid-hc2 | Y |
ODROID XU4 | odroid-xu4 | Y |
Samsung Galaxy S5 (International 3G) | samsung-k3gxx |
Exynos 5433
Manufacturer | Samsung |
---|---|
Name | Exynos 5433 |
Architecture | aarch64 |
CPU | 4x 1.9 GHz A57 & 4x 1.3 GHz A53 |
GPU | Mali-T760 |
Year | 2014 |
Process | nm |
Mainline | yes |
Components | |
CPU |
Works |
UART |
Works |
Storage |
Works |
USB |
Works |
Display |
Works |
GPU |
Works |
Pinctrl |
Works |
I²C |
Works |
SPI | |
Audio |
Works |
Video | |
Thermal |
Works |
WiFi | |
Bluetooth | |
Modem | |
GPS | |
Camera | |
Suspend |
Works |
Devices
Device | Codename | Mainline |
---|---|---|
Samsung Galaxy Note 4 | samsung-treltexx | |
Samsung Galaxy Note 4 S-LTE | samsung-tre3calte | N |
Samsung Galaxy Tab S2 9.7 LTE | samsung-gts210lte | N |
Specifications
- 4x Cortex A57 @ 1.9 GHz & 4x Cortex A53 @ 1.3 GHz
- Mali-T760
More information
- The Tizen reference device TM2 is basically rebranded Note 4 for Tizen development. The TM2e is Note 4 Edge. Both are quite nicely supported by mainline Linux kernel and almost fully supported by Tizen open-source Linux kernel (not the vendor one).
- Unlike TM2/TM2e, android devices based on Exynos 5433 cannot boot 64 bit kernels (due to early bootloaders and/or the tzsw being 32bit). This does not mean that it is impossible to get mainline on these devices though, other devices, for example samsung-serranove, which has mainline support, has the same problem.
- The android bootloader seem to be incapable of booting a mainline kernel. Trying to boot a 32bit vanilla kernel does not give any (UART) output at all. After enabling some debug options like CONFIG_DEBUG_LL the error message is shown (or maybe error happens due to CONFIG_DEBUG_LL...):
Starting kernel at 0x20008000... [MUIC] SWITCH_SEL(3) Exception: data abort pc : [<20008b40>] lr : [<20008158>] sp : 204d0b30 ip : 200080f4 fp : 10101105 r10: 204e0b30 r9 : 0156e210 r8 : 20000100 r7 : 00001f43 r6 : 204cf718 r5 : 000131fb r4 : 20008000 r3 : 12c10000 r2 : 00000044 r1 : f7010000 r0 : 00000000 Flags: nZcv IRQs off FIQs off Mode SVC_32
- Working theory is that we can circumvent this error by using u-boot or some other bootloader to chainload Linux. There is an old patch-set for TM2 that can be used as a start for porting u-boot.
- samsung-starqltechn has a u-boot port, and uses various clever tricks to make the stock bootloader happy. Trying a similar approach for Exynos5433 devices is probably a good start.
Exynos 8895
Manufacturer | Samsung |
---|---|
Name | Exynos 8895 |
Architecture | aarch64 |
CPU | 4x 2.3 GHz Mongoose M2 & 4x 1.7 GHz Cortex-A53 |
GPU | Mali-G71 MP20 |
Year | 2017 |
Process | 10nm |
Mainline | no |
Components | |
CPU |
Works |
UART | |
Storage | |
USB | |
Display | |
GPU | |
Pinctrl |
Works |
I²C | |
SPI | |
Audio | |
Video | |
Thermal | |
WiFi | |
Bluetooth | |
Modem | |
GPS | |
Camera | |
Suspend | |
Devices
No results
Specifications
- 4x 2.3 GHz Mongoose M2 & 4x 1.7 GHz Cortex-A53
- Mali-G71 MP20
Downstream status
Galaxy S8 has a working port.
Mainline status
Boots, pinctrl and pstore works. WIP
More information
Other
- 4212: Samsung Gear 1 (support dropped from mainline kernel)
- 4415 (support dropped from mainline kernel)
- 5260: SM-N750 Galaxy Note 3 Neo
- 5410
- 5800
- See also https://exynos.wiki.kernel.org